Large-Diameter Conventional Lathe

Large-Diameter Conventional Lathe | Heavy-Duty Engine Turning Lathes

 

Heavy-Duty Conventional Lathes for Large-Diameter and Oversized Workpieces

 

Large Swing Diameter: Engineered specifically for machining oversized and large-diameter components.
Heavy-Duty Construction: Built with rigid bed structures to maintain stability during aggressive cutting operations.
Versatile Workpiece Capacity: Ideal for handling heavy shafts, industrial rollers, flanges, and structural parts.
Custom Engine Configurations: Flexible spindle bore, bed length, and motor options tailored to specific turning requirements.

 
 
C61160 Large-Diameter Conventional Lathe

 

Large-Diameter Conventional Lathe for Heavy-Duty Machining

Large-diameter conventional lathes are built for processing oversized mechanical components that require exceptional swing clearance, high rigidity, and consistent stability under heavy cutting loads. These machines provide the mechanical torque and structural support necessary for large-scale turning tasks where standard engine lathes fall short.

Anyang manufactures heavy-duty conventional turning machines engineered for challenging industrial applications. Used across steel production, energy generation, equipment manufacturing, and heavy repair workshops, these lathes handle large-scale turning with direct mechanical control.

Depending on component geometry and operational demands, machines are configured with specific swing diameters, extended bed lengths, high-torque main drives, and varied spindle bores to ensure steady operational precision.

 

 
Large-Diameter Machining Capabilities
 
01/

Large Swing Capacity: Accommodates high-diameter workpieces requiring significant clear swing over the bed and cross slide.

02/

Generous Spindle Bore: Supports long tubular, shaft, or piping components through the headstock for multi-pass machining.

03/

Heavy Load Support: Reinforced bed castings and tailstock designs maintain balance under massive workpiece weights.

04/

Extended Bed Lengths: Modular bed options allow precise turning across long axial spans without structural deflection.

05/

High-Torque Roughing: Delivers consistent mechanical power for heavy material removal on forged or cast metals.

06/

Versatile Component Turning: Handles varied geometries including shafts, stepped cylinders, flanges, and industrial rollers.

 

Typical Machining Capabilities

 

Parameter

Typical Range / Options

Swing Over Bed

1000 mm – 2000 mm

Maximum Turning Diameter

Up to 1600 mm

Maximum Workpiece Length

1000 mm – 12000 mm

Maximum Workpiece Weight

Up to 20 Tons

Spindle Bore

105 mm – 300 mm

Spindle Speed Range

3.15 rpm – 315 rpm

Main Motor Power

18.5 kW – 45 kW

Bed Width

600 mm – 1100 mm

Tailstock Quill Diameter

120 mm – 220 mm

Tailstock Configuration

Manual / Motorized / Hydraulic

Custom Configuration

Available upon request

 

What Can a Large-Diameter Conventional Lathe Machine?

 

 
 

Large Drive Shafts

Turning and threading long, heavy power-transmission shafts for heavy equipment.

 
 

Industrial Rollers

Machining steel, print, and processing rollers requiring consistent concentricity.

 
 

Heavy Flanges

Facing and boring large-diameter pipe connections and pressure-vessel flanges.

 
 

Cylindrical Components

Turning internal and external diameters on large hollow or solid forgings.

 
 

Turbine Rotors

Roughing and finishing rotational shafts used in power plant machinery.

 
 

Large Tubes and Pipes

Threading and turning large-bore industrial piping and casing systems.

 
 

Mining Equipment Parts

Processing heavy-duty crusher shafts, gears, and structural housings.

 
 

Machine Tool Columns

Precision facing and turning of large structural castings and housings.

 

 

Applications of Large-Diameter Conventional Lathes

Steel Production: Used for turning wear-resistant rollers and processing heavy shafting in mill operations.

Heavy Machinery Manufacturing: Suitable for machining structural shafts, housings, and mechanical drives.

Energy & Power Generation: Used in generating facilities for maintaining large turbine rotors and shafts.

Oil & Gas Equipment: Ideal for turned components, wellhead housings, and large piping connections.

Marine Engineering: Applied in machining propeller shafts, stern tubes, and heavy mechanical couplings.

Mining & Earthmoving: Essential for re-machining large gear shafts, pins, and heavy structural rolls.

General Contract Machining: Provides job shops with versatile turning capacity for varied large-scale workpieces.

CW61160B Large-Diameter Conventional Lathe

 

Key Features of Large-Diameter Conventional Lathes

Rigid One-Piece Bed Casting

High-tensile iron bed casting provides maximum vibration damping during rough turning.

 

Heavy-Spindle Assembly

Supported by precision roller bearings to maintain rotational accuracy under heavy load.

Hardened and Ground Guideways

Induction-hardened bedways minimize wear and preserve alignment over extended use.

High-Torque Gearbox

Internal gearing engineered to deliver maximum cutting torque at low rotational speeds.

Heavy Carriage & Cross Slide

Wide saddle layout distributes cutting forces evenly across the bed section.

Robust Tailstock Design

Large-diameter quill provides secure center-support for long, heavy workpieces.

Centralized Lubrication

Automatic or semi-automatic lubrication systems keep critical slideways fully protected.

Ergonomic Operator Controls

Intuitive mechanical levers allow fine manual control over feeds and thread pitches.

 

Heavy-Duty Machine Structure

 

Heavy Cast Bed

High-rigidity structure dampens operational vibration during high-depth cuts.

01

Spindle Gearbox

Precision-ground gears deliver high torque output across a broad range of speeds.

02

Carriage Assembly

Heavy slide construction ensures precise tool feed movement under heavy cutting resistance.

03

Tailstock Unit

Heavy-duty quill support preserves axis alignment on extended shaft work.

04

Feed Gearbox

Offers a wide selection of metric and inch thread pitches without complex gear changes.

05

 

Manufacturing & Quality Control
 

Engineering & Design

Machine structures are engineered using stress-analysis modeling to ensure operational rigidity.

Casting & Heat Treatment

Machine beds undergo natural aging and stress-relieving processes to prevent long-term deformation.

Precision Machining

Critical components are machined on large gantry planers and horizontal boring mills.

Assembly & Alignment

Experienced technicians assemble lead screws, gearboxes, and slideways to precise tolerances.

Operational Testing

Every machine undergoes full-load running tests, noise checks, and geometric alignment verifications.

Final Quality Inspection

Final accuracy checks are completed against strict manufacturing standards prior to packing.

 

Custom Large-Diameter Conventional Lathes
 

We configure large-diameter turning machines according to specific component dimensions, weight requirements, and cutting demands.

Swing clearance over bed and gap

Center distance up to 12 meters

Tailstock quill actuation methods

Main drive motor power options

Spindle bore sizes and chuck mountings

Tool post styles and rapid traverse configurations

 

Discuss Your Requirements

 

Why Choose Us

 

Decades of Specialized Manufacturing Expertise

Our decades-long focus on heavy-duty lathe manufacturing gives us deep technical insight into structural rigidity and machining stability. We build reliable machines designed to handle demanding long-term operational schedules.

01

Heavy Machine Tool Infrastructure

Equipped with large-scale casting foundries, gantry milling machines, and precision testing bays, we maintain full quality control over major components. This ensures reliable structural integrity across all heavy machine beds and headstocks.

02

Engineering-Driven Configuration Support

Our technical engineers analyze your specific workpiece drawings, materials, and dimensional targets before recommending a machine. We ensure every unit is custom-tailored to deliver exact operational capabilities.

03

Strict Quality Verification & Global Delivery

Each lathe undergoes rigorous dynamic running tests, geometric alignment checks, and ocean-proof packaging prior to dispatch. We ensure smooth international delivery backed by ongoing spare parts supply and remote engineering support.

04

 

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Global Supply of Large-Diameter Conventional Lathes

We supply industrial turning equipment directly to machine shops, plants, and distributors across Europe, North America, South America, the Middle East, Southeast Asia, and Africa.
Reinforced ocean-freight packaging
Secure container loading and rust-prevention treatment
Full technical operational documentation and foundation drawings
Complete spare parts availability and remote engineering assistance

 

FAQ

 

Q: What is a large-diameter conventional lathe?

A: It is a heavy-duty manual turning machine designed with extra swing clearance and structural rigidity to turn oversized components like shafts, drums, and flanges without numerical control programming.

Q: What is the maximum turning diameter available?

A: Standard configurations support swing diameters up to 1600 mm over the bed, with larger custom swing options available upon request.

Q: How heavy of a workpiece can these machines support?

A: Depending on the model structure and bed width, standard heavy-duty models handle workpieces weighing between 5 and 20 tons between centers.

Q: What spindle bore sizes are available?

A: Spindle bore options typically range from 105 mm to 300 mm, allowing long shafting or tubular stock to pass directly through the headstock.

Q: Can these lathes be customized for extra-long workpieces?

A: Yes, bed lengths can be extended up to 12 meters, equipped with steady rests and motorized tailstocks to maintain center alignment.

Q: What is the main advantage of a conventional lathe over a CNC lathe for large components?

A: Conventional lathes offer lower initial capital cost, simplified maintenance, and fast set-up times for one-off heavy repair work, shaft turning, or low-volume maintenance machining.

Q: How are large machines protected against damage during ocean export?

A: Machines receive anti-rust coatings, protective plastic wrapping, and are securely anchored inside wooden crates or specialized steel frames for containerized shipping.

Q: How do I select the right machine configuration for my shop?

A: Provide your maximum workpiece weight, diameter, length, and material type. Our technical team will recommend the appropriate swing, motor power, and bed options.

 

Request a Quote for a Large-Diameter Conventional Lathe

 

 

Tell us about your workpiece dimensions, target material, weight, and machining requirements. Our engineers will review your details and provide a tailored machine recommendation along with a direct price quotation. 

 

Request a Quote

As one of the leading large-diameter conventional lathe manufacturers and suppliers in China, our products have good reputation in the market. Please feel free to buy high quality large-diameter conventional lathe made in China here from our factory. For price consultation, contact us.